Could i please get some help with this, thank you.

11. (Knight Problem 30.57) The 10-cm-wide, zero-resistance slide wire shown in FIGURE P30.57 is pushed toward the 2.0 0 resistor at a steady speed of 0.50 m/s. The magnetic field strength is 0.50 T. a. How big is the pushing force? [Answer: 6.3 x 10-4 N.] b. How much power does the pushing force supply to the wire? [Answer: 3.1 x 10- W.] c. What are the direction and magnitude of the induced current? [Answer: 1.3 x 10-2 A, ccw.] d. How much power is dissipated in the resistor? [Answer: 3.1 x 10-4 W. ] Zero-resistance wires . Push 2.0 0 . . 0.50 m/s 0.50 T . FIGURE P30.5712. (Knight Problem 30.71) An LC circuit is built with a 20 mH inductor and an 8.0 pF capacitor. The capacitor voltage has its maximum value of 25 V at t = 0 s. a. How long is it until the capacitor is first fully discharged? [Answer: 6.3 x 10 7 s.] b. What is the inductor current at that time? Answer: 0.050 mA. 13. (Knight Problem 30.73) For your final exam in electronics, you're asked to build an LC circuit that oscillates at 10 kHz. In addition, the maximum current must be 0.10 A and the maximum energy stored in the capacitor must be 1.0 x 10- J. What values of inductance and capacitance must you use? [Answer: 2.0 mH, 0.13 AF.]